CN103085817B

CN103085817B - Stroke for vehicle rechargeable energy storage system is estimated

Info

Publication number: CN103085817B
Application number: CN201210419369.7A
Authority: CN
Inventors: C.A.金泽; T.P.林德曼
Original assignee: GM Global Technology Operations LLC
Current assignee: GM Global Technology Operations LLC
Priority date: 2011-10-28
Filing date: 2012-10-29
Publication date: 2017-03-01
Anticipated expiration: 2032-10-29
Also published as: DE102012216617B4; CN103085817A; US20130110331A1; US8831806B2; KR20150106385A; KR20130047595A; DE102012216617A1

Abstract

The present invention relates to the stroke for vehicle rechargeable energy storage system is estimated.Provide for estimating that there is rechargeable energy storage system（RESS）The method of the stroke of vehicle, system and vehicle.Sensor unit configuration becomes measurement about one or more input values of RESS.Processor is attached to described sensor unit, and is configured with described input value and determines that the utilisable energy of described RESS is how many, and obtains the time in one day.How much determine the estimation of described vehicle travel based on the time in described one day and described utilisable energy.

Description

Stroke for vehicle rechargeable energy storage system is estimated

Technical field

The disclosure generally relates to vehicular field, more particularly, to for estimating vehicle rechargeable energy storage system （RESS）Stroke method and system.

Background technology

Some vehicles, particularly electric motor car and hybrid electric vehicle（Collectively referred to here in as electric motor car）There is rechargeable energy deposit Storage system（RESS）, such as battery.The stroke of the RESS mentioned by herein includes using RESS electricity in the vehicle in front of vehicle stopping The distance of power wheeled（For example, mile or milimeter number）.The stroke of electric motor car is extremely important to the driver of vehicle and passenger, special It is not for there is no the electric motor car of standby internal combustion engine or electromotor.

Accordingly, it is desired to provide a kind of improved method for estimating electric motor car stroke.It is also expected to providing for this estimation Improvement system, and provide the vehicle including this localization method and system.In addition, combining accompanying drawing and technical field above and the back of the body Scape technology, can understand other desired characters and the characteristic of the present invention from detailed description below and claims.

Content of the invention

According to exemplary embodiment, there is provided one kind is used for estimating rechargeable energy storage system（RESS）Electric motor car The method of the stroke of current drive cycle.Methods described includes obtaining time in one day for the described current drive cycle, determination From the available amount of described RESS with by processor, how many institutes is estimated based on the time described one day and utilisable energy State the stroke of vehicle.

According to another exemplary embodiment, there is provided one kind is used for estimating rechargeable energy storage system（RESS）Car The system of the stroke of current drive cycle.Described system includes sensor unit and processor.Described sensor unit configuration Become measurement about one or more input values of described RESS.Described processor is attached to described sensor unit, and is configured to： Determine the available amount of described RESS using described input value；Time in obtaining one day；With based in described one day Time and utilisable energy how much estimate the stroke of described RESS.

According to another exemplary embodiment, there is provided a kind of vehicle.Described vehicle includes drive system and estimating system.Institute State drive system and include rechargeable energy storage system（RESS）.Described estimating system is attached to described RESS, and is configured to Current drive cycle estimation for vehicle is how many from RESS utilisable energy.Described estimating system includes sensor unit and process Device.Described sensor unit configuration becomes measurement about one or more input values of described RESS.Described processor is attached to institute State sensor unit, and be configured to：Determine the available amount of described RESS using described input value；In obtaining one day Time；With the stroke how much estimating described RESS based on the time in described one day and utilisable energy.

The present invention provides following technical proposal.

Technical scheme 1. one kind has rechargeable energy storage system for estimation（RESS）Vehicle just current drive The method of the stroke of circulation, methods described includes：

Obtain the time in one day for the described current drive cycle；

Determine from the available amount of described RESS；With

How much estimate the stroke of described vehicle by processor based on the time in described one day and described utilisable energy.

The method of technical scheme 2. such as technical scheme 1, also includes：

Measure the temperature outside described vehicle；

Wherein estimate that the step of the stroke of described vehicle is included based on energy available in the time in described one day, described RESS The step to estimate the stroke of described vehicle for the temperature outside the how many and described vehicle of amount.

The method of technical scheme 3. such as technical scheme 1, also comprises the steps：

Determine the specified time interval corresponding to the time in described one day, when wherein said specified time interval includes multiple Between one of interval, with respect to the other time interval in the plurality of time interval, each time interval is generally and corresponding Temperature range is associated.

The method of technical scheme 4. such as technical scheme 3, wherein determines between the special time corresponding to the time in described one day It is spaced or evening hours interval every including selection daylight hours.

The method of technical scheme 5. such as technical scheme 3, also comprises the steps：

The average energy that during driving cycle before calculating more than first, described vehicle uses is how many, more than described first it During each of front driving cycle betides the described specified time interval in corresponding sky；

Wherein estimating the step of the stroke of described vehicle, to include utilisable energy based on described RESS how many and described first Before multiple during driving cycles described vehicle using the average energy how much step to estimate the stroke of described vehicle.

The method of technical scheme 6. such as technical scheme 5, from institute during driving cycle before wherein calculating more than described first The how many step of average energy stating RESS use comprises the steps：

The distance that during measuring driving cycle before more than described first, described vehicle travels；

Use from the gross energy of described RESS during determining driving cycle before more than described first；With

From institute during driving cycles before using calculating more than described first individual using described operating range and described gross energy The average energy stating RESS use is how many.

The method of technical scheme 7. such as technical scheme 5, also comprises the steps：

Measure the temperature outside described vehicle；With

No matter from described RESS during time in one day for the described driving cycle, driving cycle before calculating more than second The total average energy using is how many；

Wherein estimate that the step of the stroke of described RESS comprises the steps：

If described temperature is in the desired extent of described specified time interval, then based on described utilisable energy how many and During driving cycle before more than described first from described RESS using average energy how much estimating the stroke of described vehicle； With

If described temperature is not in the desired extent of described specified time interval, then how many based on described utilisable energy During driving cycle before more than described second from described RESS using total average energy how much estimating described vehicle Stroke.

Technical scheme 8. one kind has rechargeable energy storage system for estimation（RESS）Vehicle drive to current The system of the stroke of circulation, described system includes：

RESS sensor unit, it is configured to measure the one or more input values about described RESS；With

Processor, it is attached to described RESS sensor unit, and is configured to：

Determine that using one or more of input values the utilisable energy of described RESS is how many；

Time in obtaining one day；With

How much estimate the stroke of described vehicle based on the time in described one day and utilisable energy.

The system of technical scheme 9. such as technical scheme 8, also includes：

Temperature sensor, it is configured to measure the temperature outside described vehicle；

Wherein said processor is further configured to many based on utilisable energy in the time in described one day, described RESS To estimate the stroke of described vehicle with the temperature outside described vehicle less.

The system of technical scheme 10. such as technical scheme 8, wherein said processor is further configured to determine corresponding to institute State the specified time interval of time in one day, wherein said specified time interval includes one of multiple time intervals, with respect to institute State the other time interval in multiple time intervals, each time interval is generally associated with corresponding temperature range.

The system of technical scheme 11. such as technical scheme 10, wherein said specified time interval is from daylight hours interval and night Between select in time interval.

The system of technical scheme 12. such as technical scheme 10, wherein said processor is further configured to：

How many from the average energy of described RESS use during calculating driving cycle before more than first, more than described first During each in driving cycle betides the described specified time interval in corresponding sky before；And

Utilisable energy based on described RESS how many and described more than first before make from described RESS during driving cycles With average energy how much to estimate the stroke of described vehicle.

The system of technical scheme 13. such as technical scheme 12, also includes：

Odometer sensor, its be configured to measure described vehicle during driving cycle before more than described first travels away from From；

Wherein said processor is attached to described odometer sensor, and is further configured to：

The system of technical scheme 14. such as technical scheme 12, also includes：

Wherein said processor is attached to described temperature sensor, and is further configured to：

A kind of vehicle of technical scheme 15., including：

Drive system, it includes rechargeable energy storage system（RESS）；With

Estimating system, it is attached to described RESS, and is configured to estimate the stroke of described vehicle, described estimating system bag Include：

Sensor unit, it is configured to measure the one or more input values about described RESS；With

Processor, it is attached to described sensor unit, and is configured to：

Time in obtaining one day；With

The vehicle of technical scheme 16. such as technical scheme 15, wherein said estimating system also includes：

Wherein said processor is further configured to based on the time in described one day, described utilisable energy be how many and institute State temperature outside the vehicle stroke to estimate described vehicle.

The vehicle of technical scheme 17. such as technical scheme 15, wherein said processor is further configured to determine corresponding to institute State the specified time interval of time in one day, wherein said specified time interval includes one of multiple time intervals, with respect to institute State the other time interval in multiple time intervals, each time interval is generally associated with corresponding temperature range.

The vehicle of technical scheme 18. such as technical scheme 17, wherein said processor is further configured to：

Based on described utilisable energy how many and described more than first before during driving cycles from described RESS use flat All amount are estimating the stroke of described vehicle.

The vehicle of technical scheme 19. such as technical scheme 18, wherein said estimating system also includes：

The vehicle of technical scheme 20. such as technical scheme 18, wherein said estimating system also includes：

Wherein said processor is further configured to：

If described temperature is in the desired extent of described specified time interval, then based on the time in described one day, Described utilisable energy how many and more than described first before during driving cycles from described RESS using average energy how much come Estimate the stroke of described vehicle；With

If described temperature is not in the desired extent of described specified time interval, then based in described one day when Between, utilisable energy described in described RESS how many and described more than second before the conjunction that uses from described RESS during driving cycles How many meter average energies estimates the stroke of described vehicle.

Brief description

The disclosure is described below in conjunction with the accompanying drawings, wherein identical labelling refers to identical element, wherein：

Fig. 1 is according to exemplary embodiment, inclusion rechargeable energy storage system（RESS）With for estimating vehicle The functional block diagram of the vehicle of the system of the stroke of current drive cycle；

Fig. 2 is for estimating the vehicle with RESS according to exemplary embodiment（The vehicle of such as Fig. 1）Stroke The flow chart of process；With

Fig. 3 be according to exemplary embodiment for produce be used in Fig. 2 estimation vehicle travel during in front energy The flow chart of the process of amount use value.

Specific embodiment

Detailed description below is substantially merely exemplary, is not intended to limit the disclosure or its application and uses.Separately Outward, it is not intended to define by any theory present in background above or detailed description below.

Fig. 1 shows vehicle 100 or automobile according to exemplary embodiment.As described in more detail below, vehicle 100 It is configured to estimate the row of vehicle 100 based on the estimator that current igniting circulates in dump energy in intraday time and RESS Journey.

Vehicle 100 includes chassis 112,114, four wheels 116 of vehicle body and electronic control system 118.Vehicle body 114 is arranged in On chassis 112, and base closed other assemblies of vehicle 100.Vehicle body 114 and chassis 112 can connect formation vehicle frame.Wheel 116 each be rotatably coupled to chassis 112 near the corresponding corner of vehicle body 112.

Vehicle 100 can be any one in many different types of automobiles, for example, car, station wagon, truck, motion Type vehicle（SUV）, and can be two-wheel drive（2WD）（That is, rear wheel drive or front-wheel drive）, four-wheel drive（4WD）Or A11wheel drive（AWD）.Vehicle 100 also includes any one or combination in many different types of electric propulsion systems, for example, Gasoline or diesel fuel internal combustion engine, " flexible fuel vehicles "（FFV）Electromotor（That is, using the mixture of gasoline and ethanol）, gas Body compound（For example, hydrogen and/or natural gas）Engine fuel, burning/motor hybrid engine and motor.

In shown in Fig. 1 a exemplary embodiment, vehicle 100 is hybrid electric vehicle（HEV）, also include actuator group Part 120, above-mentioned RESS 122, stroke estimating system 124, power inverter assembly（Or inverter 126）With radiator 128.Dissipate Hot device 128 is externally attached to vehicle frame at it, although not being shown specifically, including multiple cooling ducts, wherein contains cooling fluid （That is, coolant）, such as water and/or ethylene glycol（That is, " antifreezing agent "）, it is coupled to internal combustion engine 130 and inverter 126.

Actuator 120 includes being arranged at least one propulsion system 129 of driving moment 116 on chassis 112.Specifically Ground, as shown in fig. 1, actuator 120 includes internal combustion engine 130 and motor generator（Or motor）132.As this area skill Art personnel understood, the variator that motor 132 is included therein, although and not shown, also include stator module（Including leading Electric coil）, rotor assembly（Including ferromagnetic core）, and flow direction and flow out the cooling fluid of radiator 128 or coolant.Motor Stator module in 132 and/or rotor assembly may include multiple electromagnetic poles, as is known.

Again referring to Fig. 1, internal combustion engine 130 and motor 132 be integrated so that one or both of which pass through one or more Power transmission shaft 134 is mechanically coupled at least a portion wheel 116.In one embodiment, vehicle 100 is " cascaded H EV ", wherein Internal combustion engine 130 is not attached directly to variator, but is attached to electromotor（Not shown）, for motor 132 energy supply.Another In one embodiment, vehicle 100 is " HEV in parallel ", and wherein internal combustion engine 130 passes through for example to make the rotor of motor 132 rotatably It is attached to the power transmission shaft of internal combustion engine 130 and be attached directly to variator.In another embodiment, vehicle 100 includes pure electric vehicle, There is no internal combustion engine.

RESS 122 is arranged on chassis 112, and is electrically connected to inverter 126.RESS 122 preferably includes there is one group The rechargeable battery of battery unit.In one embodiment, RESS 122 includes ferric phosphate lithium cell, such as nano phosphate Lithium ion battery.RESS 122, inverter 126 provide the drive system of propulsion vehicle 100 together with propulsion system 129.RESS 122 stroke is estimated by stroke estimating system 124, as described below.

As shown in fig. 1, stroke estimating system 124 includes clock 140, sensor array 142 and computer system 146. Although in addition, so not illustrating, stroke estimating system 124（And/or one or more part）Can be with Electronic Control system System 118 integrates, and may also include one or more power supplys.In one embodiment, stroke estimating system 124 is vehicle A part for 100 RESS control module.

Then clock 140 obtains or determines the current drive cycle of vehicle 100 time in one day.Preferably, described Time in one day and vehicle current drive cycle（Herein also referred to as ignition cycle）The time starting in one day.In a reality Apply in example, clock 140 provides the information about the time in one day to computer system 146, process and be used in estimate currently In the stroke of vehicle 122 during driving cycle.In other embodiments, clock 140 can be a part for computer system 146 And/or can be a part for one or more of the other system of vehicle 100.In other other embodiments, in described one day Time can transfer to be obtained by the clock that is arranged in outside vehicle, for example pass through wireless network（For example pass through satellite or Cellular Networks Network）A part for the remote server communicating with vehicle 100.

Sensor array 142 includes one or more temperature sensors 148, one or more RESS sensor 150 and Individual or multiple odometer sensors 152.Ambient temperature outside one or more of temperature sensor 148 measuring vehicles.One In individual embodiment, ambient temperature is arranged on the outer surface of vehicle 100（The ceiling of such as vehicle 100）Above or the most nearby.Temperature passes Sensor 148 provides signal and/or the information about measurement to computer system 146, process and be used in estimate that vehicle 122 is worked as In the stroke of front driving cycle.

One or more of RESS sensors 150 be preferably placed in RESS 122 the most nearby（Preferably in RESS122 Or near）.RESS sensor 150 measures one or more input values of electricity about RESS 122 or capability state（For example, The electric current of RESS 122, voltage or impedance）.RESS sensor 150 to computer system 146 provide about measurement signal and/ Or information, to process and to be used in the stroke estimating vehicle 122 current drive cycle.

The distance that during one or more of odometer sensors 152 measurement driving cycles, vehicle 100 travels.Show at one In example, odometer sensor 152 includes the mileometer for vehicle 100.One or more of odometer sensor 152 is to computer System 146 provides the signal and/or information about measuring, process and be used in calculate energy using in meansigma methodss, finally uses In the stroke estimating vehicle 122 postorder driving cycle.

Computer system 146 is attached to clock 140, sensor array 142 and RESS 122.In certain embodiments, count Calculation machine system 146 is also coupled to electronic control system 118.Computer system 146 utilizes data and information from clock 140 （Including the time in one day for vehicle 100 current drive cycle）With the measured value from sensor array 142（Including environment temperature Angle value, the mileage of vehicle 100 and the input value about RESS 122）Estimate the stroke of vehicle 122 current drive cycle.Excellent Select in embodiment, computer system 146 execution is according to the step of the process 200,300 further describing below with reference to Fig. 2 and Fig. 3 These functions.

In certain embodiments, computer system 146 may also include one or more sensors 148,150,152, clock 140, electronic control system 118 and/or one part, and/or one or more of the other device.In addition, it should be appreciated that, computer System 146 may also differ from embodiment shown in Fig. 1.For example, computer system 146 may be coupled to or otherwise utilizes one Other control systems not shown in individual or multiple remote computer system and/or Fig. 1.

In the embodiment shown, computer system 146 includes processor 154, internal memory 156, interface 158, storage device 160 With bus 162.Processor 154 executes the calculating of computer system 146 and control function, it may include any type of processor or Multiple processors, single IC for both such as microprocessor or cooperation with complete processing unit function arbitrarily suitably several The IC apparatus of amount and/or circuit board.During the operation, processor 154 execution is included in one or more in internal memory 156 Program 164, the overall operation of such control computer system 146 and stroke estimating system 124, preferably executing following processes In step, the step of the process 200,300 for example further describing with reference to Fig. 2 and Fig. 3.

Internal memory 156 can be any type of suitable internal memory.This may include various types of DRAM (Dynamic Random Access Memory) （DRAM）（Such as SDRAM）, various types of static state RAM（SRAM）And various types of Nonvolatile memory（PROM, EPROM And flash memory）.In some examples, internal memory 156 be located at and/or be co-located at processor 154 identical computer chip on.

In a preferred embodiment, based on the driving cycle before different time interim vehicle 100 in a day, internal memory Multiple Energy Accumulator 166,168,170 that 156 storage said procedures 164 use together with the energy from multiple RESS 122. With other time interval compared with, each time interval described both corresponds to related to relative temperature range different time in a day Interval.

In the embodiment shown, first accumulator 166 is followed the tracks of and is stored the vehicle 100 of daylight hours interim generation Recently the value that in driving cycle, the energy of RESS 122 uses.Second accumulator 168 is followed the tracks of and is stored evening hours interim The value that in the driving cycle recently of vehicle 100 occurring, the energy of RESS 122 uses.3rd accumulator 170 is followed the tracks of and is stored car The value that in 100 driving cycle recently, the energy of RESS 122 uses, but regardless of these driving cycles occur intraday Time.Each accumulator 166,168,170 preferably includes and is stored in the related average energy of corresponding time interval in internal memory 156 Amount use value and temperature value（Or the scope of temperature value）.

In a this kind of example, the first accumulator 166 is included 10:00 AM and 10:Start recently between 00 PM The meansigma methodss that in driving cycle, the energy of RESS 122 uses（Or it is used in the data calculating in meansigma methodss）, and the second accumulator 168 are included 10:00 PM and 10:This kind of value in the driving cycle starting between 00 AM.Equally in this example, the 3rd tires out Plus device 170 includes total meansigma methodss that the energy of RESS 122 in driving cycle recently uses（Or it is used in the number calculating meansigma methodss According to）, but regardless of driving cycle time started in one day.Related to each time interval and/or accumulator is intraday specific Temporally variableization.Similarly, the variable amounts of accumulator and time interval.For example, in one embodiment, in one day Each hour or intraday each two time period etc. can use single accumulator.

Bus 162 is used for transmission procedure, data, state and other information between the different parts of computer system 146 Or signal.In one embodiment, bus 162 can be a part for the Vehicle communications bus of vehicle 100.Bus 162 can be for even Connect any suitable physical or the logic device of computer system and part.This include, but not limited to direct rigid line connection, optical fiber, Infrared and wireless bus technology.During the operation, program 164 is stored in internal memory 156 and is executed by processor 154.

Interface 158 allows to the communication of computer system 146, such as from system driver and/or another computer system, And can be implemented using any suitable method and apparatus.It may include the one or more nets with other systems or component communication Network interface.Interface 158 may also include the one or more network interfaces with technician's communication and/or is connected to storage device（For example Storage device 160）One or more memory interfaces.

Storage device 160 can be the storage device of any suitable type, and including direct access storage device, such as hard disk drives Dynamic device, flash memory system, floppy disk and CD drive.In one exemplary embodiment, storage device 160 includes program Product, internal memory 156 can receive one or more processes of the execution disclosure from this program product（The process of such as Fig. 2 and Fig. 3 200th, 300 step）One or more embodiments program 164, be described further below.In another exemplary embodiment In, described program product can be stored directly in internal memory 156 and/or disk（For example, disk 172）In or by internal memory 156 and/or disk（Example As disk 172）Otherwise access, as described below.

Although it should be clear that this exemplary embodiment is described in the context of full function computer system, this The technical staff in field is it will be recognized that the mechanism of the disclosure can be by one or more class for storing its program and instruction The non-transitory computer-readable signal bearing medium of type is distributed as program product and implements described distribution, described bearing medium example As for carrying program with containing the non-transitory computer-readable medium of computer instruction being stored therein, being used for causing calculating Machine processor（Such as processor 154）Implement and configuration processor.This program product can take many forms, no matter for implementing The particular type of the computer-readable signal bearing medium of its distribution, the disclosure all can similarly be applied.Signal bearing medium Example includes：Recordable media（Such as floppy disk, hard disk drive, RAM (random access memory) card and CD）And transmission medium（Such as digital simulation Communication linkage）.Similarly can be clear, computer system 146 may also differ from the embodiment shown in Fig. 1, for example, department of computer science System 146 may be coupled to or otherwise utilize one or more remote computer systems and/or other control system.

Fig. 2 is the flow chart according to exemplary embodiment for estimating the process 200 of the stroke of vehicle.Process 200 base Stroke in the time Estimate vehicle that present energy is how many and current drive cycle is in a day of RESS.This process 200 can be tied The vehicle 100, RESS 122 and the stroke estimating system 124 that close Fig. 1 use.

As shown in Figure 2, process 200 includes the step obtaining the time in one day（Step 201）.Time in described one day Obtain preferably when the current drive cycle of vehicle starts.In one embodiment, the time in described one day is by the clock of Fig. 1 140 measurements, and it is supplied to the processor 154 of Fig. 1.In another embodiment, determined by the processor 154 of Fig. 1 at least in part Time in one day.

Measurement Current Temperatures（Step 202）.But this Current Temperatures includes outside vehicle ambient air temperature the most nearby. Described Current Temperatures are preferably by the Local or Remote temperature sensor measurement not affected by the unwanted energy.This Current Temperatures can Measured by the temperature sensor 148 of Fig. 1, and be supplied to the processor 154 of Fig. 1.

In addition, determining the available amount of RESS（Step 204）.The available amount of RESS preferably passes through Fig. 1's Processor 154 inputs to calculate using the RESS being measured by one or more RESS sensors 150 of Fig. 1.In an embodiment In, the available amount of RESS is determined using the energy capacity of RESS and the electricity percentage status of RESS, for example, use The entitled Electrical Vehicle Range Prediction being submitted to for 8th by August in 2011 commonly assigned common not Certainly U.S. Patent application No. 13/205, the technology disclosed in 393, the entire disclosure of which is incorporated herein by herein.

Carry out the determination corresponding about the time in step 201 one day of which time interval（Step 206）.At one In embodiment, time in described one day correspond to one day in one of multiple time intervals, compared with other time interval, Each time interval is associated with corresponding temperature range.Specifically, the plurality of time interval includes at least first relatively Relatively warm time interval and at least second relatively cool time interval.

In one embodiment, the time interval of step 206 two possible general selection of time, i.e. daytime from one day （Or it is relatively warm）Time interval and night（Or it is relatively cold）Time interval.In one example, daytime is spaced in 10:00 AM and 10:Between 00 PM, night is spaced in 10:00 PM and 10:Between 00 AM.Described specified time interval alterable.Similar Ground, the variable amounts of time interval.For example, in one embodiment, it is each hour or in a day during each two in a day Between section etc. can use Fig. 1 internal memory 156 independent accumulator.

If the current time in determining a day in step 206 corresponds to first（Daytime or relatively warm）Between the time Every, then this process is carried out along the first branch 207.Specifically, it is very first time interval acquiring mean temperature（Step 208）. The mean temperature of step 208 is preferably obtained by the first accumulator 166 of the internal memory 156 from Fig. 1 for the processor 154 of Fig. 1.This is average Temperature includes the mean temperature of the external air temperature for the most recent driving cycle occurring in the interim very first time, example As average temperature.

For example, it is spaced apart 10 in the very first time:00 AM and 10:In an embodiment between 00 PM, mean temperature can Including 10:00 AM and 10:The average outside air temperature of the most recent driving cycle starting between 00 PM.This at one In embodiment, 10:00 AM and 10:Between 00 PM occur all driving cycles be included in this average in, if this Driving cycle occurred in the predetermined number of days from current date（For example, past 30 days）Interior.However, it is described in other embodiments Predetermined number of days can be different.In addition, in certain embodiments, it is also possible to use the different measuring of " most recent " driving cycle.

Then carry out whether consistent with the mean temperature of step 208 determination of the Current Temperatures of step 202（Step 210）. If the Current Temperatures of step 202 are in the certain limit of the value related to the mean temperature of step 208, then determine step 202 Current Temperatures are consistent with described mean temperature.In one such embodiment, if the Current Temperatures of step 202 and step When difference between rapid 208 mean temperature is less than pre-determined amount, the Current Temperatures of step 202 are confirmed as flat with step 208 All temperature are consistent.In one such embodiment, this pre-determined amount is equal to 10 degrees Celsius.However, in other embodiments, this is pre- Quantitative values alterable, and/or can be using other threshold values（For example, the percentage threshold of difference）And/or standard.

If it is determined that the Current Temperatures of step 202 are consistent with the mean temperature of step 208, then when obtaining or determining first Between interval average energy consumption value（Step 212）.This average energy consumption value includes it of interim very first time generation The meansigma methodss of the energy expenditure of per unit distance that vehicle uses in front most recent driving cycle（For example, every mile of kilowatt hour or The every km of kilowatt hour）.Calculating very first time interval is shown in Fig. 3（And other interval）Average energy consumption value process, It is further described with reference to an exemplary embodiment.

Similar to the above, " most recent " driving cycle may include from current predetermined number of days on date（30 for example passing by My god）Interior driving cycle, but in other embodiments can be different.In one embodiment（For example further with reference to Fig. 3 The embodiment of description）, during driving cycle before, the average energy consumption value of step 212 is first by the processor 154 of Fig. 1 Calculate and the first accumulator 166 of the internal memory 156 from Fig. 1 obtains in current drive cycle.In another embodiment, current During driving cycle, the average energy consumption value of step 212 can be based in current drive cycle from Fig. 1 by the processor 154 of Fig. 1 Internal memory 156 the information that obtains of the first accumulator 166 calculating.

Then estimate the stroke of vehicle（Step 214）.As described above, as it is used herein, the stroke of vehicle include pre- Meter exhausts enough energy propulsion vehicle 100 in RESS and cuts out or using another power source propulsion vehicle（For example standby is pneumatic Electromotor）The distance that can be travelled based on RESS power of vehicle in front.The trip preferably uses step 204 by processor 154 The average energy consumption value at the very first time interval of amount and step 212 is estimating.Specifically, the energy of step 204 is many Few average energy consumption value preferably divided by step 212, is based on RESS to calculate the vehicle in front that cannot reoffer power in RESS Power is expected the estimated distance that can travel.The trip is provided to driver（For example, in the display screen of operator's seat of vehicle On）, to allow driver correspondingly to make arrangements, for example, charged to RESS before travelling longer than the distance estimating stroke.

Now turn to step 210 if it is determined that the Current Temperatures of step 202 and the mean temperature of step 208 are inconsistent, that Obtain total average energy consumption value（Step 216）.This total average energy consumption value includes driving in most recent before to be followed The per unit distance that during ring, vehicle uses（For example, mile or km）Energy expenditure meansigma methodss, no matter driving cycle sends out The raw time in one day.This total average energy consumption value is preferably stored up in the 3rd accumulator 170 in the internal memory 156 of Fig. 1. Show the process calculating total average energy consumption value in Fig. 3, be further described with reference to an exemplary embodiment.

Similar to the above, " most recent " driving cycle may include the predetermined number of days from current date（30 for example passing by My god）Interior driving cycle, but in other embodiments can be different.In one embodiment（For example further with reference to Fig. 3 The embodiment of description）, during driving cycle before, total average energy consumption value of step 216 is in advance by the process of Fig. 1 Device 154 calculates, and the first accumulator 166 of the internal memory 156 from Fig. 1 obtains in current driving cycle.In another embodiment In, during current drive cycle, total average energy consumption value of step 216 can be based on by the processor 154 of Fig. 1 works as forerunner The information obtaining from first accumulator 166 of the internal memory 156 of Fig. 1 in dynamic circulation calculates.

Then this process is carried out to above-mentioned steps 214, but the total average energy consumption value using step 216.Specifically Ground, the trip is preferably come using the amount of step 204 and total average energy consumption value of step 216 by processor 154 Estimate.Total average energy consumption value preferably divided by step 216 for the amount of step 204, stops it to calculate in vehicle Vehicle in front is expected the estimated distance that can travel based on RESS power.As described above, the trip is provided to driver（Example As on the display screen of operator's seat of vehicle）, to allow driver correspondingly to make arrangements, for example, travelling longer than estimation stroke Distance before to RESS charge.

Now turn to step 206 if it is determined that the time working as in the previous day corresponds to second（Night or colder）Between the time Every, then described process is carried out along the second branch 217.Specifically, it is that the second time interval obtains mean temperature（Step 218）. The mean temperature of step 218 is preferably obtained by the second accumulator 168 of the internal memory 156 from Fig. 1 for the processor 154 of Fig. 1.This is average Temperature includes the mean temperature of the portion's air themperature outside for the most recent driving cycle occurring during the second time interval, example As average temperature.

For example, it is 10 in the second time interval:00 PM and 10:In an embodiment between 00 AM, mean temperature May include 10:00 PM and 10:The average external air themperature of the most recent driving cycle starting between 00 AM.One this Plant in embodiment, 10:00 PM and 10:Between 00 AM occur all driving cycles be included in this average in, if this Plant driving cycle to occur in the predetermined number of days from current date（For example, past 30 days）Interior.However, institute in other embodiments Stating predetermined number of days can be different.In addition, in certain embodiments, it is also possible to use the different measuring of " most recent " driving cycle.

Then carry out whether consistent with the mean temperature of step 218 determination of the Current Temperatures of step 202（Step 220）. If the Current Temperatures of step 202 are in the certain limit of the value related to described mean temperature, then determine working as of step 202 Front temperature is consistent with the mean temperature of step 218.In one such embodiment, if the Current Temperatures of step 202 and step When difference between 218 mean temperature is less than predetermined number of degrees with respect, the Current Temperatures of step 202 are confirmed as average with step 218 Temperature is consistent.In one such embodiment, this predetermined number of degrees with respect is equal to 10 degrees Celsius.However, in other embodiments, this makes a reservation for Number of degrees alterable, and/or can be using other threshold values（For example, the percentage threshold of difference）And/or standard.

If it is determined that the Current Temperatures of step 202 are consistent with the mean temperature of step 218, then when obtaining or determining second Between interval average energy consumption value（Step 222）.This average energy consumption value include occurring during the second time interval it The per unit distance that in front most recent driving cycle, RESS uses（For example, mile or km）Energy expenditure meansigma methodss.Fig. 3 In show calculate the second time interval average energy consumption value process, make into one with reference to an exemplary embodiment Step description.

Similar to the above, " most recent " driving cycle may include the predetermined number of days from current date（30 for example passing by My god）Interior driving cycle, but in other embodiments can be different.In one embodiment（For example further with reference to Fig. 3 The embodiment of description）, during driving cycle before, the average energy consumption value of step 222 is in advance by the processor of Fig. 1 154 calculate and in current drive cycle the second accumulator 168 of the internal memory 156 from Fig. 1 obtain.In another embodiment, exist During current drive cycle, the average energy consumption value of step 222 can be based in current drive cycle by the processor 154 of Fig. 1 The information obtaining from second accumulator 168 of the internal memory 156 of Fig. 1 to calculate.

Then described process is carried out to above-mentioned steps 214, using the average energy consumption of the second time interval of step 222 Value.Specifically, the trip preferably uses the amount of step 204 and the average energy consumption value of step 222 by processor 154 To estimate.The average energy consumption value preferably divided by step 222 for the amount of step 204, to calculate before vehicle stops Vehicle is expected the estimated distance that can travel based on RESS power.As described above, the trip is provided to driver（For example, On the display screen of operator's seat of vehicle）, to allow driver correspondingly to make arrangements, for example travel longer than estimate stroke away from Charge to RESS from before.

Now turn to step 220 if it is determined that the Current Temperatures of step 202 and the mean temperature of step 218 are inconsistent, that Described process is carried out to above-mentioned steps 216, obtains total average energy consumption value.As described above, this total average energy disappears Consumption value includes the meansigma methodss of the energy expenditure of per unit distance that vehicle uses during most recent driving cycle before（For example, Every mile of kilowatt hour or the every km of kilowatt hour）, no matter there is the time in one day in driving cycle.

The process 200 above in conjunction with three accumulator descriptions, that is,：I () represents first accumulator at very first time interval, (ii) represent that the second accumulator of the second time interval and (iii) represent that All Time is spaced the 3rd being combined together and adds up Device.Similar to the above, other time interval and accumulator, the such as more concrete interval in corresponding to a day can be used（Example As being incremented by per hour, being every two hours incremented by etc.）.In this case, it will the extra step estimated using the stroke of step 214 The branch of rapid and process 200.

Fig. 3 be according to exemplary embodiment for produce in Fig. 2 process 200 estimate stroke in used before energy Flow chart using the process 300 of meansigma methodss.Specifically, this process 300 is used for calculating the step 208 of Fig. 2 and 218 average temperature The average energy consumption value of the step 212 of angle value and Fig. 2,216 and 222.This process 300 preferably refers in Fig. 2 process 200 Current drive cycle before multiple driving cycles on execute.

In the embodiment shown, once the propulsion system of vehicle works, described process 300 begins to（Step 302）.Measurement The distance that vehicle travels（Step 304）.Preferably, in whole driving cycle, the distance of traveling by Fig. 1 one or more in Journey sensor 152 measures, and is supplied to the processor 154 of Fig. 1.

In addition, the energy consumption of measurement RESS（Step 306）.Preferably, in whole driving cycle, described energy expenditure Amount is measured by one or more RESS sensors 150 of Fig. 1, and is being supplied to the processor 154 of Fig. 1, and/or RESS data And/or input is supplied to the processor 154 of Fig. 1 by the RESS sensor 150 of Fig. 1, for use in the whole driving cycle of calculating Energy consumption.In a preferred embodiment, the amount of RESS is left using current sensor measurement during the operation.

Temperature also outside measuring vehicle（Step 308）.But this temperature preferably includes outside vehicle environment on hand Air themperature.Preferably, in whole driving cycle, this temperature is measured by one or more temperature sensors 148 of Fig. 1, and It is supplied to the processor 154 of Fig. 1.

No matter the time in one day, calculating the meansigma methodss of every mile of energy expenditure（Step 310）.In addition, no matter one Time in it, calculate mean temperature（Step 311）.In a preferred embodiment, this mean temperature is included with respect to current The mean temperature of the current elapsed time of driving cycle.Specifically, in one embodiment, the described elapsed time is marked as car Start or propulsion system start working and vehicle close or propulsion system become not work between time.Step 310 and 311 Calculating preferably carried out by the processor 154 of Fig. 1.The energy expenditure meansigma methodss of step 310 and the average temperature value quilt of step 311 It is stored in internal memory（Step 312）.Specifically, in a preferred embodiment, the energy expenditure meansigma methodss of step 310 and step 311 Average temperature value be stored in Fig. 1 the 3rd accumulator 170 of internal memory 156 in, as Fig. 2 mistake in subsequent vehicle driving cycle By the total meansigma methodss obtaining after the processor 154 of Fig. 1 in the step 216 of journey 200.The temperature of the 3rd accumulator 170 and energy Amount consumption figures preferably includes compound total meansigma methodss of the temperature of current drive cycle respectively from Fig. 3 and energy expenditure, its The corresponding value calculating during using the driving cycle before other come average, but regardless of driving cycle occur in one day when Between.

Time in obtaining one day（Step 314）.Time in described one day obtains preferably when driving cycle starts.? In one embodiment, this time in one day is measured by the clock 140 of Fig. 1, and is supplied to the processor 154 of Fig. 1.In another reality Apply in example, this time in one day is determined by the processor 154 of Fig. 1 at least in part.

Carry out the determination corresponding about the time in step 314 one day of which time interval（Step 316）.At one In embodiment, the time interval of step 316（With process 300）Time interval corresponding to the process 200 of Fig. 2.Therefore, shown In embodiment, this time interval includes at least first relatively warm time interval and at least second relatively cool time interval.With Describe similar above in conjunction with Fig. 2, in one embodiment, from one day two possible described in general selection of time between the time Every i.e. daytime（Or it is relatively warm）Time interval and night（Or it is relatively cold）Time interval.In one example, daylight hours It is spaced in 10:00 AM and 10:Between 00 PM, evening hours are spaced in 10:00 PM and 10:Between 00 AM.However, with above-mentioned Similar, described specified time interval and/or its variable amounts.

If the current time in determining a day in step 316 corresponds to second（Relatively cold）Time interval, then Driving cycle during to the second time interval calculates the meansigma methodss of every mile of energy expenditure（Step 318）.In addition, during to second Between interim driving cycle calculate mean temperature（Step 320）.Step 318 and 320 calculating preferably by the processor of Fig. 1 154 execution.The average temperature value of the energy expenditure meansigma methodss of step 318 and step 320 is stored in internal memory（Step 322）. Specifically, in a preferred embodiment, the energy expenditure meansigma methodss of step 318 and the average temperature value of step 320 are stored in Fig. 1 The second accumulator 168 of internal memory 156 in, as vehicle subsequent drive circulation in by Fig. 1 processor 154 respectively in the mistake of Fig. 2 The follow-up meansigma methodss obtaining in the step 218 of journey 200 and 222.The temperature of the second accumulator 168 and energy consumption values preferably include Temperature respectively from the current drive cycle of Fig. 3 and the compound mean of energy expenditure, during it uses wherein said one day Time correspond to the corresponding value calculating during driving cycle before other for second time interval come average.

On the contrary, if the current time in determining a day in step 316 corresponds to first（Relatively warm）Time interval, So the driving cycle of the interim very first time is calculated to the meansigma methodss of every mile of energy expenditure（Step 324）.In addition, it is right Driving cycle in the interim very first time calculates mean temperature（Step 326）.Step 324 and 326 calculating preferably by Fig. 1 Processor 154 execute.The average temperature value of the energy expenditure meansigma methodss of step 324 and step 326 is stored in internal memory（Step Rapid 328）.Specifically, in a preferred embodiment, the energy expenditure meansigma methodss of step 324 and the average temperature value of step 326 are deposited Storage, in the first accumulator 166 of the internal memory 156 of Fig. 1, is existed by Fig. 1 processor 154 respectively as in the circulation of vehicle subsequent drive The follow-up meansigma methodss obtaining in the step 208 of process 200 of Fig. 2 and 212.The temperature of the first accumulator 166 and energy consumption values Preferably include the compound mean of the temperature of current drive cycle respectively from Fig. 3 and energy expenditure, it uses wherein said Time in one day correspond to very first time interval other before driving cycle during the corresponding value that calculates come average.

As described above, the property of described time interval and/or variable amounts.For using two or more time interval Embodiment, can calculate the mean temperature of each time interval using the other branch of the process 300 of Fig. 3 and step and energy uses Value, and total mean temperature and the energy use value running through all time intervals.

It thus provides for estimating the method for the stroke of vehicle, system and the vehicle with RESS.For example, using work as Time in the previous day carries out the potential of vehicle using meansigma methodss and changes together with the energy of time from a day of driving cycle before Enter to estimate.

It should be clear that disclosed method, system and vehicle may differ from accompanying drawing and described herein those.For example, Vehicle 100, stroke estimating system 124 and/or its various parts may differ from shown in Fig. 1 or are described in connection with.Additionally, it should Clear, some steps of process 200,300 may differ from describing shown in Fig. 2 and Fig. 3 and/or above in conjunction with it.Similarly should When clear, some steps of said process can simultaneously or with different from Fig. 2 and Fig. 3 and/or describe above in conjunction with it those are suitable Sequence occurs.

Although presented at least one exemplary embodiment in detailed description above, but it should be clear that deposit In substantial amounts of deformation.It is also apparent that described exemplary embodiment is only example, it is not intended to be restricted in any way this Bright scope, application or structure.On the contrary, detailed description above will provide those skilled in the art with for showing described in implementing The convenient road map of example property embodiment.It should be appreciated that without departing from the disclosure model being illustrated by claims and its equivalent Various changes can be carried out to the function of element and arrangement in the case of enclosing.

Claims

1. a kind of method with regard to the stroke of current drive cycle for the vehicle for estimation with rechargeable energy storage system, institute The method of stating includes：

Obtain the time that described current drive cycle started in one day；

Determine the specified time interval corresponding to the time starting in described one day, wherein said specified time interval includes multiple One of time interval, each time interval in the plurality of time interval is generally associated with corresponding temperature range；

Determine from the available amount of described rechargeable energy storage system；

The average energy that during calculating driving cycle before more than first, described vehicle uses is how many, the forerunner of more than described first During each of dynamic circulation betides the described specified time interval in corresponding sky；With

And the forerunners of described more than first how many by the utilisable energy based on described rechargeable energy storage system for the processor During dynamic circulation described vehicle using average energy estimate the stroke of described vehicle.

2. the method for claim 1, also includes：

Measure the temperature outside described vehicle；

Wherein estimate that the step of the stroke of described vehicle is included based on the time starting in described one day, described rechargeable energy The step to estimate the stroke of described vehicle for the temperature outside the how many and described vehicle of utilisable energy in storage system.

3. the method for claim 1, wherein determines the specified time interval corresponding to the time starting in described one day It is spaced including selecting daylight hours interval or evening hours.

4. the method for claim 1, from described rechargeable during driving cycle before wherein calculating more than described first The step that the average energy of electrical energy storage system use is how many comprises the steps：

Use from the gross energy of described rechargeable energy storage system during determining driving cycle before more than described first；With

Using described operating range and described gross energy using driving cycles before calculating more than described first during from described can The average energy recharging energy storage system use is how many.

5. the method for claim 1, also comprises the steps：

Measure the temperature outside described vehicle；With

No matter from described during the time that described current drive cycle started in one day, driving cycle before calculating more than second Total average energy that rechargeable energy storage system uses is how many；

Wherein estimate that the step of the stroke of described rechargeable energy storage system comprises the steps：

If described temperature is in the desired extent of described specified time interval, then how many and described based on described utilisable energy During driving cycle before more than first from described rechargeable energy storage system using average energy how much to estimate State the stroke of vehicle；With

If described temperature is not in the desired extent of described specified time interval, then based on described utilisable energy is how many and institute During driving cycle before stating more than second from described rechargeable energy storage system using total average energy how much come Estimate the stroke of described vehicle.

6. a kind of for estimating the system with the vehicle of the rechargeable energy storage system stroke to current drive cycle, institute The system of stating includes：

Rechargeable energy storage system sensor unit, it is configured to measure relevant described rechargeable energy storage system One or more input values；With

Processor, it is attached to described rechargeable energy storage system sensor unit, and is configured to：

Determine that using one or more of input values the utilisable energy of described rechargeable energy storage system is how many；

Obtain the time that described current drive cycle started in one day；

Determine the specified time interval corresponding to the time started in described one day, when wherein said specified time interval includes multiple Between one of interval, each time interval in the plurality of time interval is generally associated with corresponding temperature range；

It is how many from the average energy of described rechargeable energy storage system use during calculating driving cycle before more than first, During each in driving cycle before more than described first betides the described specified time interval in corresponding sky；With

Based on described utilisable energy how many and described more than first before deposit from described rechargeable energy during driving cycles Storage system using average energy how much estimating the stroke of described vehicle.

7. system as claimed in claim 6, also includes：

Wherein said processor is further configured to based on the time starting in described one day, described rechargeable energy stores system The stroke to estimate described vehicle for the temperature outside the how many and described vehicle of utilisable energy in system.

8. system as claimed in claim 6, wherein said specified time interval is from daylight hours interval and evening hours interval Middle selection.

9. system as claimed in claim 6, also includes：

Odometer sensor, the distance of its described vehicle traveling during being configured to measure driving cycle before more than described first；

10. system as claimed in claim 6, also includes：

A kind of 11. vehicles, including：

Drive system, it includes rechargeable energy storage system；With

Estimating system, it is attached to described rechargeable energy storage system, and is configured to estimate the stroke of described vehicle, described Estimating system includes：

Sensor unit, it is configured to measure the one or more input values about described rechargeable energy storage system；With

Processor, it is attached to described sensor unit, and is configured to：

Obtain the time that current drive cycle started in one day；

From described rechargeable energy storage system during based on driving cycle before described utilisable energy and described more than first How many average energies using estimates the stroke of described vehicle.

12. vehicles as claimed in claim 11, wherein said estimating system also includes：

Wherein said processor is further configured to based on the time starting in described one day, described utilisable energy be how many and institute State temperature outside the vehicle stroke to estimate described vehicle.

13. vehicles as claimed in claim 11, wherein said estimating system also includes：

14. vehicles as claimed in claim 11, wherein said estimating system also includes：

Wherein said processor is further configured to：

No matter the time starting in described one day, depositing from described rechargeable energy during driving cycle before calculating more than second Total average energy that storage system uses is how many；

If described temperature is in the desired extent of described specified time interval, then based in described one day start time, Use from described rechargeable energy storage system during the how many driving cycles before individual with more than described first of described utilisable energy Average energy how much to estimate the stroke of described vehicle；With

If described temperature is not in the desired extent of described specified time interval, then based in described one day start when Between, utilisable energy described in described rechargeable energy storage system how many and described more than second before during driving cycles from Described rechargeable energy storage system using total average energy how much estimating the stroke of described vehicle.